Occurrence and significance of the middle Turonian (upper Cretaceous) belemnite Actinocamax in central western Montana
By: by William A. Cobban.
Series: U.S. Geological Survey bulletin -- 1962-C; Contributions to late Cretaceous stratigraphy and paleontology, western Montana
Publisher: U.S. G.P.O.
Published: 1991
Place of publication: [Washington
Language: eng
Number of pages: 26
Subjects: Paleontology -- Cretaceous.; Belemnites -- Montana -- Powell County.; Mollusks, Fossil -- Montana -- Powell County.; Paleontology -- Montana -- Powell County -- Cretaceous.
Notes: Includes bibliographical references (p. 26).